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NO148231B - Butterfly valve. - Google Patents

Butterfly valve.

Info

Publication number
NO148231B
NO148231B NO78781086A NO781086A NO148231B NO 148231 B NO148231 B NO 148231B NO 78781086 A NO78781086 A NO 78781086A NO 781086 A NO781086 A NO 781086A NO 148231 B NO148231 B NO 148231B
Authority
NO
Norway
Prior art keywords
valve
pressure element
damper
valve housing
holder
Prior art date
Application number
NO78781086A
Other languages
Norwegian (no)
Other versions
NO781086L (en
NO148231C (en
Inventor
Masao Kawamura
Original Assignee
Kitamura Valve Mfg Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kitamura Valve Mfg Co Ltd filed Critical Kitamura Valve Mfg Co Ltd
Publication of NO781086L publication Critical patent/NO781086L/en
Publication of NO148231B publication Critical patent/NO148231B/en
Publication of NO148231C publication Critical patent/NO148231C/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/002—Sealings comprising at least two sealings in succession
    • F16J15/008—Sealings comprising at least two sealings in succession with provision to put out of action at least one sealing; One sealing sealing only on standstill; Emergency or servicing sealings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
    • F16K1/2266—Shaping or arrangements of the sealing the sealing being arranged on the valve seat and being forced into sealing contact with the valve member by a spring or a spring-like member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/1624—Destructible or deformable element controlled
    • Y10T137/1797—Heat destructible or fusible

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Taps Or Cocks (AREA)
  • Details Of Valves (AREA)

Description

Oppfinnelsen angår en dreiespjeldventil ifølge kravenes innledning. The invention relates to a rotary valve according to the preamble of the claims.

Kjente ventiler har ofte den ulempe at deres funksjon forringes når ventiltetningen er slitt eller beskadiget eller når ventiltetningen er smeltet på grunn av varmeutviklingen ved brann eller uhell. Således kan fluidum lekke gjennom ventilen og ha mulighet til å forårsake ytterligere skade. Ved utførelsen ifølge US 3 480 253 er det således mulig at små rester av den originale ventiltetning kan hindre god tetning når disseoppfanges mellom tetningen og ventilens spjeld. Known valves often have the disadvantage that their function deteriorates when the valve seal is worn or damaged or when the valve seal is melted due to the generation of heat in the event of a fire or accident. Thus, fluid can leak through the valve and have the potential to cause further damage. In the design according to US 3,480,253, it is thus possible that small remnants of the original valve seal can prevent a good seal when these are caught between the seal and the valve's damper.

Det er oppfinnelsens formål å frembringe en ventil It is the object of the invention to produce a valve

med en tetning som ikke har de ovenfor nevnte ulemper og som i tillegg er meget driftssikker. with a seal which does not have the above-mentioned disadvantages and which is also very reliable.

Dette mål for oppfinnelsen oppnås ved hjelp av de i kravenes karakteriserende deler angitte trekk. This aim of the invention is achieved by means of the features specified in the characterizing parts of the claims.

Oppfinnelsen beskrives under henvisning til tegnin-gene som viser en utførelse av en ventil ifølge oppfinnelsen, idet figur 1 viser et lengdesnitt av en spjeldventil med en tetningsinnretning ifølge oppfinnelsen, figur 2 viser et for-størret tverrsnitt av en detalj av den på figur 1 viste tetningsinnretning, og figur 3 viser et forstørret tverrsnitt av en detalj av den på figur 1 viste tetningsinnretning, hvor tetningen er smeltet. The invention is described with reference to the drawings showing an embodiment of a valve according to the invention, Figure 1 shows a longitudinal section of a butterfly valve with a sealing device according to the invention, Figure 2 shows an enlarged cross-section of a detail of the one shown in Figure 1 sealing device, and Figure 3 shows an enlarged cross-section of a detail of the sealing device shown in Figure 1, where the seal has been melted.

Figur 1 og 2 viser en dreiespjeldventil med en tetningsinnretning ifølge oppfinnelsen, hvor ventilen er anordnet mellom flenser 2 av et venstre, hhv. et høyre rør 1 ved hjelp av monteringselementer 3 som hvert omfatter en gjenget pinneskrue og to muttere. Figures 1 and 2 show a rotary butterfly valve with a sealing device according to the invention, where the valve is arranged between flanges 2 of a left, respectively a right tube 1 by means of mounting elements 3, each of which comprises a threaded pin screw and two nuts.

Et par plateformede spjeld 7 er festet til øvre og nedre ventilstammer 5 og 6, som er dreibart montert i et ringformet ventilhus 4 slik at de plateformede ventilorganer 7 kan dreies en vinkel på 90° om ventiIstammenes 5 og 6 akse, for således å lukke og åpne ventilen for gjennomstrømning av fluidum gjennom rørene 1. A pair of plate-shaped dampers 7 are attached to the upper and lower valve stems 5 and 6, which are rotatably mounted in an annular valve housing 4 so that the plate-shaped valve members 7 can be rotated through an angle of 90° about the axis of the valve stems 5 and 6, in order to close and open the valve for the flow of fluid through the pipes 1.

Hvert spjeld 7 har en kuleformet ytre overflate langs sin periferi, som koaksialt berører en kuleformet indre overflate av hver av høyre og venstre tetningsringer 9. Hver ring 9 er fremstilt av et noe fleksibelt plastmateriale og har et ringformet spor 10 i sin utad vendende flate og et radialt utadrettet flensparti rundt periferien. Each damper 7 has a spherical outer surface along its periphery, which coaxially contacts a spherical inner surface of each of the right and left sealing rings 9. Each ring 9 is made of a somewhat flexible plastic material and has an annular groove 10 in its outward facing surface and a radially outwardly directed flange portion around the periphery.

De to tetningsringer 9 er anordnet mellom de høyre The two sealing rings 9 are arranged between the right ones

og venstre ytre ender av hulrommet i det ringformede hus 4 og opptar delvis ringformede utsparinger 8 utformet i dettes indre overflate, og et par ringformede holde-elementer 13 som hvert er koaksialt festet til ventilhuset 4 ved hjelp av bolter 14, slik at den indre overflate av ringen 9 under trykk kan holdes i kontakt med spjeldets 7 ytre overflate, og det kan være dan-net en liten klaring eller et lite hulrom 12 mellom sideflaten av den ringformede utsparing 8 og ringen 9. and the left outer ends of the cavity in the annular housing 4 and occupy partially annular recesses 8 formed in its inner surface, and a pair of annular holding elements 13 which are each coaxially attached to the valve housing 4 by means of bolts 14, so that the inner surface of the ring 9 under pressure can be kept in contact with the outer surface of the damper 7, and a small clearance or a small cavity 12 can be formed between the side surface of the annular recess 8 and the ring 9.

Med mellomrom rundt holde-elementets 13 innside og vendende mot den tilhørende ring 9 er det anordnet flere utsparinger 15 som holder trykkfjærer 16 som presser et ikke brennbart, ringformet trykkelement 17 innad, idet dette i lik-het med ringen 9, har en i det vesentlige kuleformet indre overflate hvis form tilsvarer den ytre overflate av spjeldet 7, og som er koaksialt anordnet mellom tetningsringen 9 og holde-elementet 13. With spaces around the inside of the holding element 13 and facing the associated ring 9, several recesses 15 are arranged which hold pressure springs 16 which press a non-flammable, ring-shaped pressure element 17 inwards, as this, like the ring 9, has a substantially spherical inner surface whose shape corresponds to the outer surface of the damper 7, and which is arranged coaxially between the sealing ring 9 and the holding element 13.

Figur 2 viser et forstørret tverrsnitt av en detalj av ventilen og én av tetningsinnretningene, hvor ventilen be-finner seg i lukket stilling. Når spjeldet 7 står under flui-dumtrykk fra venstre side på tegningen, holdes trykkanleggs-partiet 9a av den venstre, indre side på ringen 9 presset mot den i det vesentlige kuleformede ytre overflate av spjeldet 7, ved hjelp av fluidumtrykket i det ringformede spor 10. På den annen side, holdes trykkanleggsflaten 9b av den høyre indre side av ringen 9 presset mot den kuleformede ytre overflate av spjeldet ved hjelp av fluidumtrykket i klaringen eller hulrommet 12. Figure 2 shows an enlarged cross-section of a detail of the valve and one of the sealing devices, where the valve is in the closed position. When the damper 7 is under fluid pressure from the left side of the drawing, the pressure system part 9a is held by the left, inner side of the ring 9 pressed against the essentially spherical outer surface of the damper 7, by means of the fluid pressure in the annular groove 10 On the other hand, the pressurizing surface 9b of the right inner side of the ring 9 is held pressed against the spherical outer surface of the damper by the fluid pressure in the clearance or cavity 12.

Når ringen 9 er noe slitt eller beskadiget, presser trykkfjærehe 16 det ringformede trykkelement 17 mot høyre på figuren, og holder således ringen 9 presset mot den ytre overflate av spjeldet 7. Ventilens funksjon nedsettes således ikke. When the ring 9 is somewhat worn or damaged, the pressure spring 16 presses the annular pressure element 17 to the right in the figure, and thus keeps the ring 9 pressed against the outer surface of the damper 7. The function of the valve is thus not impaired.

Dersom tetningsringen 9 smelter som følge av varme ved brann eller uhell, blir det ringformede trykkelement 17, som vist på figur 3, skjøvet innad, mot høyre på figuren, ved hjelp av trykkfjærene 16, med det resultat at den kuleformede, If the sealing ring 9 melts as a result of heat in the event of a fire or accident, the annular pressure element 17, as shown in figure 3, is pushed inwards, towards the right of the figure, by means of the pressure springs 16, with the result that the spherical,

Claims (3)

indre overflate 17a av det ringformede trykkelement 17 holdes i kontakt med den ytre overflate av spjeldet 7, og innersiden av det ringformede trykkelement 17 holdes samtidig i berøring med siden av ventilhuset 4. Følgelig oppnås en effektiv, midlertidig tetning i ventilen, og muligheten for et ytterligere alvorlig uhell på grunn av vesentlig fluidumlekkasje er eliminert, noe som gjør ventilen sikrere enn en ventil av en vanlig konstruksjon. 1. Dreiespjeldventil med minst en tetningsanordning, om-fattende en holder som er festet til ventilhuset, en fleksi-bel teningsring anordnet mellom holderen og venilhuset som av holderen presses mot ventilhuset og samtidig mot den ytre overflate av spjeldet som er utformet som del av en rotasjons-flate og omfatter et trykkelement som ligger an mot spjeldets ytre overflate og fjærende presses mot denne ytre overflate, karakterisert ved at et trykkelement (17) er anordnet mellom holderen (13) og ventilhuset (4) med sin sideflate i anlegg mot tetningsringen (9), at trykkelementet (17) har en indre overflate (17a) som er utformet komplimen-tært til spjeldets (7) annen overflate, og at fjæranordninger (16) er anordnet mellom holderen (13) og trykkelementet (17), idet fjæranordningene presser trykkelementet (17) i retningen mot ventilhuset (4) slik at trykkelementet (17) tettende ligger an mot spjeldets (7) ytre overflate og samtidig mot ventilhuset (4) dersom tetningsringen beskadiges. inner surface 17a of the annular pressure element 17 is kept in contact with the outer surface of the damper 7, and the inner side of the annular pressure element 17 is simultaneously kept in contact with the side of the valve housing 4. Consequently, an effective, temporary seal is achieved in the valve, and the possibility of a further serious accidents due to significant fluid leakage are eliminated, making the valve safer than a valve of a conventional design. 1. Rotary damper valve with at least one sealing device, comprising a holder which is attached to the valve housing, a flexible sealing ring arranged between the holder and the valve housing which is pressed by the holder against the valve housing and at the same time against the outer surface of the damper which is designed as part of a rotation surface and comprises a pressure element which rests against the damper's outer surface and is springily pressed against this outer surface, characterized in that a pressure element (17) is arranged between the holder (13) and the valve housing (4) with its side surface in contact with the sealing ring ( 9), that the pressure element (17) has an inner surface (17a) which is designed to complement the damper's (7) other surface, and that spring devices (16) are arranged between the holder (13) and the pressure element (17), since the spring devices presses the pressure element (17) in the direction towards the valve housing (4) so that the pressure element (17) rests tightly against the outer surface of the damper (7) and at the same time against the valve housing (4) if the sealing ring is damaged. 2. Ventil ifølge krav 1, karakterisert ved at spjeldets (7) ytre periferiske overflate er del av en kuleoverflate. 2. Valve according to claim 1, characterized in that the outer peripheral surface of the damper (7) is part of a spherical surface. 3. Ventil ifølge krav 2, karakterisert ved at et spor (10) er utformet i den overflate av tetningsringen (9) som vender mot trykkelementet (17) nær dettes kant mot ringens indre omkretsflate.3. Valve according to claim 2, characterized in that a groove (10) is formed in the surface of the sealing ring (9) which faces the pressure element (17) close to its edge towards the inner circumferential surface of the ring.
NO78781086A 1977-03-30 1978-03-29 Butterfly valve. NO148231C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1977037721U JPS53133226U (en) 1977-03-30 1977-03-30

Publications (3)

Publication Number Publication Date
NO781086L NO781086L (en) 1978-10-03
NO148231B true NO148231B (en) 1983-05-24
NO148231C NO148231C (en) 1983-08-31

Family

ID=12505361

Family Applications (1)

Application Number Title Priority Date Filing Date
NO78781086A NO148231C (en) 1977-03-30 1978-03-29 Butterfly valve.

Country Status (15)

Country Link
US (1) US4201239A (en)
JP (1) JPS53133226U (en)
AU (1) AU503956B1 (en)
BE (1) BE865131A (en)
CA (1) CA1076093A (en)
DE (1) DE2808280C3 (en)
DK (1) DK126478A (en)
FI (1) FI67609C (en)
FR (1) FR2385960A1 (en)
GB (1) GB1543545A (en)
IT (2) IT1092067B (en)
NL (1) NL7802560A (en)
NO (1) NO148231C (en)
SE (1) SE437421B (en)
ZA (1) ZA781264B (en)

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FR2466687B1 (en) * 1979-09-28 1985-10-18 Hills Mccanna Co SAFETY VALVE IN CASE OF BUTTERFLY FIRE OR SPHERICAL SHUTTER
FR2468047B1 (en) * 1979-10-23 1986-05-16 Quamco Inc BUTTERFLY VALVE
US4331319A (en) * 1980-03-06 1982-05-25 Jamesbury Corp. Butterfly valve
USRE32409E (en) * 1982-02-04 1987-04-28 Keystone International, Inc. Valve assembly
US4399833A (en) * 1982-02-04 1983-08-23 Keystone International, Inc. Valve assembly
US4487216A (en) * 1982-08-09 1984-12-11 General Signal Corporation Valve seal for fire safe or high temperature valves
DE3332793C2 (en) * 1983-09-10 1995-04-13 Josef Nemetz Butterfly valve
JP2000199571A (en) * 1999-01-06 2000-07-18 Tomoe Tech Res Co Sheet ring of eccentric butterfly valve
US6533241B1 (en) * 2001-10-04 2003-03-18 Pin-Neng Chen Retaining piece of a ball valve
TWM347496U (en) * 2008-08-14 2008-12-21 Tun Yi Ind Co Ltd Valve device
CN102748518A (en) * 2012-07-12 2012-10-24 杨元亭 Clamping butterfly valve body
CN102808957B (en) * 2012-08-20 2014-11-05 中阀科技(长沙)阀门有限公司 Butterfly valve
US20140203201A1 (en) * 2013-01-22 2014-07-24 Fisher Controls International Llc Butterfly valves having multiple seals
US9927034B2 (en) * 2015-08-25 2018-03-27 Mueller International, Llc Valve seat stiffener
FR3067783B1 (en) * 2017-06-20 2020-09-04 Ksb Sas CENTER BUTTERFLY VALVE
DE202018105534U1 (en) * 2018-09-26 2018-10-04 Johnson Electric Germany GmbH & Co. KG Valve

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US3177887A (en) * 1960-10-26 1965-04-13 Hills Mccanna Co Ball valve having heat destructible seal
US3252684A (en) * 1962-05-18 1966-05-24 Parker Hannifin Corp Rotary spherical valve assembly including fluid pressure seals
GB1006377A (en) * 1963-01-02 1965-09-29 Guest & Chrimes Ltd Improvements in and relating to butterfly valves
US3346234A (en) * 1964-06-29 1967-10-10 Cameron Iron Works Inc Valve
US3480253A (en) * 1967-12-28 1969-11-25 Hills Maccanna Co Ball valve with seats for journalled ball
US3650508A (en) * 1969-02-06 1972-03-21 Royal Industries Bi-directional valve for cryogenic fluids
US3593960A (en) * 1969-05-09 1971-07-20 Domer Scaramucci Disc valve with upstream and downstream seats
US3598363A (en) * 1969-09-04 1971-08-10 Golconda Corp Ball valve
IT962127B (en) * 1971-10-14 1973-12-20 Nihon Jido Chosetsuki Seisakus IMPROVEMENT IN BUTTERFLY VALVES
US3815869A (en) * 1972-02-24 1974-06-11 Bailey W & Co Ltd Butterfly disc valves
US3986699A (en) * 1974-07-02 1976-10-19 Posi-Seal International, Inc. Positive shut-off seal
AT341848B (en) * 1974-11-28 1978-02-27 Klinger Ag BUTTERFLY VALVE
US4005848A (en) * 1975-02-11 1977-02-01 Fisher Controls Company, Inc. Bidirectional pressure-assisted valve seal
GB1525193A (en) * 1976-11-13 1978-09-20 Tk Valve Ltd Ball valves
US4105040A (en) * 1977-06-27 1978-08-08 Chester Arnold M Temperature responsive valve seal

Also Published As

Publication number Publication date
JPS53133226U (en) 1978-10-21
FR2385960A1 (en) 1978-10-27
IT7819466A0 (en) 1978-01-20
FI780943A (en) 1978-10-01
FI67609B (en) 1984-12-31
NO781086L (en) 1978-10-03
ZA781264B (en) 1979-02-28
US4201239A (en) 1980-05-06
FI67609C (en) 1985-04-10
DE2808280A1 (en) 1978-10-05
GB1543545A (en) 1979-04-04
AU503956B1 (en) 1979-09-27
IT7820517V0 (en) 1978-01-20
DE2808280B2 (en) 1980-07-17
DK126478A (en) 1978-10-01
NO148231C (en) 1983-08-31
BE865131A (en) 1978-07-17
SE7803529L (en) 1978-10-01
IT1092067B (en) 1985-07-06
SE437421B (en) 1985-02-25
NL7802560A (en) 1978-10-03
CA1076093A (en) 1980-04-22
FR2385960B1 (en) 1982-11-19
DE2808280C3 (en) 1981-06-04

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